Halo Nation

Key to Pirth

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Key to Pirth is an Achievement in Halo Wars that is worth 50 Gamerscore. It is obtained for beating Act 2 on any difficulty. Act 2 consists of the missions Arcadia City, Arcadia Outskirts, Dome of Light and Scarab.

The name is a reference to Pirth, the capital city of Arcadia, as all the levels in Act 2 take place on the planet.